All data are in degrees Fahrenheit

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Water temperature in Holyhead

Detailed information about the current water temperature in Holyhead. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Holyhead now

56.4

°F

November 10, 21:57

Trend:

stable

Yesterday:

56.1°F

Tomorrow:

56.3°F

Sunrise:

07:33

Sunset:

16:31

Day Length:

8 h. 58 min.

Holyhead in November

Minimum:

47.1°F

Average:

48.5°F

Maximum:

50.3°F

Sea water temperature in Holyhead today

As of now, in Holyhead, the water temperature is 56.4°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 0.9°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

Today's water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 56.1°F on 2022, while the historical minimum was 54.5°F on 2020.

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 56.0°F, the minimum temperature may reach 55.6°F, and the maximum might stay at 56.3°F.

Daily water temperature in Holyhead

Date Current Year

actual* / forecast**

last year 10 years average
Oct 27 57.7°F 57.3°F 57.2°F
Oct 28 57.3°F 57.4°F 57.0°F
Oct 29 56.9°F 57.0°F 56.9°F
Oct 30 56.8°F 56.7°F 56.8°F
Oct 31 56.4°F 56.5°F 56.6°F
Nov 1 56.9°F 56.3°F 56.4°F
Nov 2 56.7°F 55.8°F 56.4°F
Nov 3 56.7°F 55.6°F 56.2°F
Nov 4 56.6°F 55.6°F 56.1°F
Nov 5 56.3°F 55.5°F 56.1°F
Nov 6 56.0°F 55.5°F 55.8°F
Nov 7 56.2°F 55.6°F 55.8°F
Nov 8 56.2°F 55.7°F 55.8°F
Nov 9 56.1°F 55.7°F 55.7°F
Nov 10 56.4°F 56.0°F 55.5°F
Nov 11 56.3°F 55.6°F 55.4°F
Nov 12 56.2°F 55.3°F 55.3°F
Nov 13 56.1°F 55.9°F 55.2°F
Nov 14 55.9°F 55.6°F 55.0°F
Nov 15 55.8°F 55.5°F 54.9°F
Nov 16 55.7°F 55.4°F 54.8°F
Nov 17 55.6°F 55.1°F 54.7°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Holyhead by month

In an average year, Holyhead offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Holyhead was recorded on August 16, 2026, reaching a 63.6°F. While the coldest temperature occurred on March 9, 2018, dipping to 43.0°F. The average readings by season are 48.5°F in Winter, 48.7°F in Spring, 58.3°F in Summer, and 57.9°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Caernarfon 53.5°F 19mi
Bangor 53.4°F 21mi
Conwy 52.4°F 33mi
Douglas 54.9°F 59mi
Aberystwyth 53.5°F 66mi

* current water temperature in this city

** straight line distance from Holyhead